Xydan, . <br/><br/>
Companion floppy for SQL:A complete reference /  Textual Documents 
Xydan. 
 - New Delhi :  Tata Mcgraw hills ,  2001. 
<br/><br/><label>Subjects--Index Terms: </label>F-Computer 
<br/><br/><label>Dewey Class. No.: </label>001.64  / XYD